Reading The Secret of Light is an important step toward understanding both the intellectual and spiritual balances that exist in the universe. It is best to read in solitude, away from the bustle of the everyday world. As you open this book, imagine yourself at the sacred Temple of an unkown ancient religion. With trepidation you expect to discover something mysterious and possibly of great value to you. Briefly close your eyes and exhale deeply. Now you are ready to read Walter Russell's The Secret of Light. - Vladimir B. Ginzburg, Ph.D.